"Base" causes BTB to stay blue.
The ocean appears blue because water absorbs colors in the red part of the light spectrum, while reflecting and scattering blue light. This causes the ocean to look blue to our eyes.
The ocean appears blue because water molecules absorb colors in the red part of the light spectrum, while reflecting and scattering blue light. This causes our eyes to perceive the ocean as blue.
Fire appears blue at the bottom because of the presence of oxygen and carbon dioxide in the combustion process. The blue color is a result of the high temperature of the flame, which causes certain molecules to emit blue light.
The sky appears blue because of a phenomenon called Rayleigh scattering, where shorter blue wavelengths of light are scattered more by the Earth's atmosphere than longer wavelengths of light. This scattering causes blue light to be more dominant in the sky, giving it its blue color.
The sky appears blue because of a phenomenon called Rayleigh scattering, where sunlight is scattered by the gases and particles in the Earth's atmosphere, with shorter blue wavelengths being scattered more than longer wavelengths. This causes the blue light to be more visible to our eyes, making the sky appear blue.
Carbon dioxide gas will cause bromothymol blue (BTB) to change from blue to yellow. This is due to the acidic nature of carbon dioxide when dissolved in water, which causes the pH to decrease and the BTB indicator to change color.
Bromothymol blue is blue in a solution with a pH over 7,6.
When you mix lemon juice with bromothymol blue (BTB) solution, the color will change from blue to yellow. This is because the acidity of the lemon juice causes the BTB indicator to shift to its yellow color.
It turns yellow after we exhaled into the btb solution..:)
In an alkaline solution, bromothymol blue (BTB) turns blue.
The product equation for the reaction between HCl (hydrochloric acid) and BTB (bromothymol blue) results in a color change from blue to yellow. The equation is: HCl + BTB (blue) → H+ (colorless) + Cl- + BTB (yellow)
Adding NaOH (sodium hydroxide) to BTB (bromothymol blue) will turn the solution blue, as the color of BTB changes depending on the pH of the solution. When NaOH is added, it increases the pH, causing BTB to shift from yellow to blue.
The BTB stands for: Bromothymol Blue Mostly used for testing the water if there is acid or not.
blue
BTB changes color because of the CO2 in chemicals. When we blow into the BTB with a straw, the water vapor fuses with the BTB and change color. Our breath has some acidic characteristics. The BTB changes from blue, its original color to green-yellow, that's proof that what we breath has acidic molecules.
it is a greenish color.
Adding carbon dioxide to bromothymol blue (BTB) solution causes a color change because it forms carbonic acid, which lowers the pH of the solution. BTB changes color in response to pH changes, shifting from blue in a basic solution to yellow in an acidic solution. The increased acidity due to the carbon dioxide causes the solution to turn yellow.